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Turtle-shaped t-storm map, GFS shifts east with the storm, the L.I. forecast, and all of the images:

- You can see the widespread thunderstorm potential in the turtle-shaped 1st image, which is valid from 8 AM today to 8 AM tomorrow.

- While the GFS is still showing a very strong storm for Friday night, it has shifted eastward. The Canadian is still way out to sea with the storm, although it's showing a few showers Friday night. The Euro also had some showers for late afternoon on Friday into the night from a weak system coming through from the west.

- It will be noticeably cooler though on Friday with highs only reaching around 60 degrees on Long Island.


LONG ISLAND FORECAST:


Today: Cloudy with a 70% chance of showers in the afternoon. Highs mostly in the mid to upper 60's. Wind out of the ENE at 5 to 10 mph.

Tonight: Periods of rain with a slight chance of a thunderstorm with lows in the mid 50's in Nassau and low 50's in Suffolk. Wind out of the E at 5 to 10 mph.

Tomorrow: Showers lingering into mid-morning and then becoming partly cloudy by late morning with just a slight chance of a stray shower or thunderstorm in the afternoon. Highs in the mid 70's in Nassau and low 70's in Suffolk, but cooler for the south shore and east end. Wind mostly out of the NW at 5 to 10 mph.


Tomorrow night: Showers and possibly a thunderstorm with lows in the mid 50's in Nassau and low to mid 50's in Suffolk. Wind out of the ESE at 5 to10 mph.

Wednesday: Cloudy with showers and possibly a thunderstorm. Highs mostly in the upper 60's. Wind out of the E in the morning at 5 to 10 mph and then out of the NW by late afternoon at 10 to 15 mph.

Thursday: Mostly sunny and breezy with highs in the mid 60's. Wind out of the NW at 10 to 20 mph.

Friday: Mostly cloudy and cool with a 30% chance of showers by late afternoon. Highs around 60 degrees

Saturday: Partly cloudy with highs in the low 60's.


- 1st image: Severe weather potential from 8 AM today to 8 AM tomorrow from the Storm Prediction Center

- 2nd image: My 5 day outlook for Long Island

- 3rd image: Simulated radar for 3 PM today from the HRRR model

- 4th and 5th images: Maps from the GFS and Euro, respectively, for 8 PM Friday

- 6th image: Projected precipitation through 8 PM Saturday from the Weather Prediction Center

- 7th image: Projected 24-hour precipitation from 2 PM Friday to 2 PM Saturday from the Euro ensemble mean

- 8th image: Projected temperatures for Long Island for the next 10 days from the NWS model blend











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